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A. E. SCHMIDT.

ROLLER SHUTTBR.

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No. 591,885. Patented Oct. 19,1897.

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AUGUST EDMUND SCHMIDT, OF LEIPSIG, GERMANY.

ROLLER-SHUTTER.

SPECIFECATION forming part of Letters Patent No. 591,885, dated October 19, 1897. Application filed May 17, 1897- Serial No. 636,991. (No modell) To all whom, it may concern:

Be it known that I, AUGUST EDMUND SCHMIDT, a subject of the King of Saiony, and a resident of Leipsic, in the Kingdom of Saxony, German Empire, have invented certain new and useful Improvements in Roller- Shutters, of which the following is a full, clear, and exact description.

The present invention relates to that class of roller-shutters which are formed by a series of tubes connected together by pivotbars; and the object of the invention is to provide means for filling out the spaces left between the rolls at the points where one roll closes onto or against the next, and thus to avoid the possibility of burglary, which is at present enhanced by the said spaces, which form a good point to start breaking the shutters.

In order to render the present speciiication more easily intelligible, reference is had to the accompanying drawings, in which similar letters of reference denote similar parts throughout the several views.

Figure l is a front elevation of a part of a shutter; Fig. 2, a section on line R R of Fig. l; Fig. 3, an end elevation; Fig. 4, a section on line S S of Fig. l; Fig. 5, a detail front view' of one of the strips inserted; Fig. 6, a plan of Fig. 5, and Fig. 7 a section through the same.

The shutter is formed by a series of tubepieces d, strung together by means of bars a, having suitable heads and being sheathed in easing t to render them less accessible. The ends of the said bars are linked together by links 71 and the whole device may be rolled over the roll A.

In order to fill out the space left between each piece of tube and the next piece above or below it, safety strips or plates c are employed, the same being of any suitable length and being simply passed into the tubes in one row, as will be best seen from Fig. 4. These strips c will then lie alternately within one piece of tube and between the neXt two pieces at 'either side of the rst piece, said pieces being above and below therst piece at either side of the same. These plates may be long enough to be passed through the whole width of the shutter orthey may be in pieces, as shown at Fig. 1i. They may be full or hollow or they may be curved plates having triangular ends if desired. They may also be attached to the sheaths of the pivotbars a if thought desirable to prevent lateral movement within the tubes, but still allow sufiicient play forthe shutter to be rolled over the roll A.

I claim as my inventionl. In a shutter consisting of the pieces of tube strung together as specified, the combination of sheaths and pivot-bars arranged therein and means for lling out the spaces between the adjacent tube-pieces substantially as described.

2. The combination of a shutter consisting of a series of tubes strung together as specilied, a series of pivot-bars to connect the same, and having each a sheath, a series of strips or plates c lying within one piece of tube and in the space between the adjacent upper and lower pieces, in the manner and for the purpose substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.V

AUGUST EDMUND SCHMIDT.

IVitnesses:

MAX NATTHI, RUDOLPH FRICKE. 

